First,
Sorry about the roughness of my words and spelling. But as a French canadian, I am about as good as a 13 years old average student, expecially when it's time to write.
Could you help me to understand the need for 2k primer? I thought it is mainly useful to sand the surface quicker than the epoxy primer to get a nice smooth finish prior to basecoat. But, the metallic area that I have to cover is small about the size of a match box. So I don't mind having to sand 30 min more over my epoxy primer just to get the same finish as I would get in 5 min with 2K primer.
I have sand papers with grid from 60 to 2000. I just feel like it's useless to buy a full can of 2k primer and epoxy primer on such a small area that needs bondo.
I plan to repaint the hole fender, but I'll just sand the clearcoat from it and paint over the original basecoat.
Can you show me your sandwich?